Zombie head
Medium XP lamp (The Bird and the Beast) was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
Medium XP lamp detail

Medium XP lamps were obtained by turning in 7,000 renown during the second world event, the Bird and the Beast. It rewards 94% of the experience of a medium prismatic lamp for most skills, however certain skills (such as Divination, Strength and Defence) receive 108.1% experience instead. A bronze Armadylean token or a bronze Bandosian token is required to purchase the lamp.

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